47985660 has 36 divisors (see below), whose sum is σ = 145557048. Its totient is φ = 12796128.

The previous prime is 47985653. The next prime is 47985667. The reversal of 47985660 is 6658974.

It is an interprime number because it is at equal distance from previous prime (47985653) and next prime (47985667).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47985667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133114 + ... + 133473.

Almost surely, 2^47985660 is an apocalyptic number.

It is an amenable number.

47985660 is an abundant number, since it is smaller than the sum of its proper divisors (97571388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47985660 is a wasteful number, since it uses less digits than its factorization.

47985660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266602 (or 266597 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 47985660 is about 6927.1682526123. The cubic root of 47985660 is about 363.3879239767.

The spelling of 47985660 in words is "forty-seven million, nine hundred eighty-five thousand, six hundred sixty".